Lenovo 4X90Q84427 Ethernet network card 80 mm

Lenovo ThinkPad Ethernet Extension Adapter Gen 2

The Lenovo ThinkPad Ethernet Extension Adapter Gen 2 adds a wired network port to compatible ThinkPad systems. It is aimed at professionals who need a reliable Ethernet link for PXE booting or remote management. The compact dongle connects without installing additional drivers. It suits mobile users who require a quick, plug-and-play network connection.

80 mm cable length and portable form factor

The adapter ships with an 80 mm cable that keeps the connector close to the chassis. This short tether reduces strain on the port while staying out of the way during travel. It handles standard Ethernet speeds for everyday office tasks and remote sessions. The length limits placement flexibility in setups where the network jack sits farther away.

Driver-free USB integration for ThinkPad systems

The device plugs directly into a compatible ThinkPad USB port and works immediately. No external power supply or software installation is required, freeing up setup time. It draws minimal power, leaving the host port available for other peripherals. Buyers whose laptops lack the supported USB interface will need a different connectivity solution.